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Detailed Specifications: Type: Porro-prism center focusing (inner hinge). Lens Construction: Objective Lens: 2 elements in 1 group Eyepiece Lens: 3 elements in 2 groups Magnification: 10X Objective Lens Diameter: 50mm Real Field of View: 5.0 degrees Apparent Field of View: 50 degrees Field of View at 1000m: 87m Field of View at 1000 yd.: 261 ft. Exit Pupil: 5.0mm Eye Relief: 20mm Relative Brightness: 25 Diopter Adjustment Range: +4 Diopter Eye Distance Adjustment Range: 2.2" - 2.8" (57mm - 72mm) Focusing Range: 18` to infinity (5.5m to infinity) Eyepiece Ring: Slide type Body Color: Black Waterproof: 1m depth of water (JIS Class 6), nitrogen filled Height & Width: 6.9" x 7.3" (175mm x 185mm) Thickness: 3.1" (80mm) Accessories: Objective lens cap, rain guard cap (eyepiece lens cap), case, neck strap
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